Unbroken

Unbroken Fighters have a level of skill above others. Their almost barbaric power when it comes to weapons in unrivaled by even well trained soldiers. Additionally you have a very good knowledge of magic weapons, another helpful attribute to the Unbroken. They get their name from an ancient warrior technique that the Goliath's used. It lets them enter a state of minimal pain for a duration and use great weapons in one hand with ease. 

The Unbroken became rediscovered after a book was found on the technique. The book was mass reprinted and distributed to the many Fighting Colleges in the world. Now many warriors have perfected this skill and become important men on the field of war because of their strength and force

Two-Handed Mastery

You can one hand two handed weapons once you reach level 3

Arcane Detection

You gain proficiency in Arcana. Also you can tell the name and abilities of any magic weapon by spending 30 minutes studying the item

Nerve Block

At 10th level you gain the ability to block all pain for 1 minute. You also gain 25 temporary hp. During this time of no pain enemies have advantage against you, however, you gain a +2 bonus to attacks and damage. 

You regain this after a short or long rest

Unstoppable

At 18th level you can prevent all non-magical damage for 1 minute, and half all spell damage (magic weapons, and things like dragon breath can still affect you). You do double damage, but everyone has advantage against you. This recharges after a Long Rest

Ultimate Two Handed

At 15th level, if you choose to two hand a weapon(this weapon must have the two-handed or versatile trait) it does double damage, as if it was a critical.